A method for determining the biological activity of defibrotide
CA 2468877 C · Owner: Cattaneo, Franco · Inventors: Ferro, Laura; Cattaneo, Franco; Porta, Roberto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An enzymatic method for determining the biological activity of defibrotide is described. The method, which is based on the capacity of defibrotide to potentiate the enzymatic activity of plasmin comprises the steps of: a) , bringing into contact defibrotide plasmin and a substrate specific for the plasmin which, by reaction with the plasmin provides a measurable product and , b) measuring the amount of product formed at successive times.
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed November 27, 2002 and granted March 20, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 27, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 27, 2024.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.